package net.sourceforge.heracles.heracleshttpclient.web;
   
   import java.util.ArrayList;
   import java.util.Collection;
   import java.util.Iterator;
   
   import javax.faces.application.FacesMessage;
   import javax.faces.context.FacesContext;
   import javax.faces.event.ActionEvent;
  import javax.faces.model.SelectItem;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpSession;
  
  import net.sourceforge.heracles.acegi.HeraclesUserDetails;
  import net.sourceforge.heracles.heracleshttpclient.service.Service;
  import net.sourceforge.heracles.model.LdapGroup;
  import net.sourceforge.heracles.model.LdapUser;
  
  import org.acegisecurity.Authentication;
  import org.acegisecurity.AuthenticationException;
  import org.acegisecurity.AuthenticationManager;
  import org.acegisecurity.context.HttpSessionContextIntegrationFilter;
  import org.acegisecurity.context.SecurityContext;
  import org.acegisecurity.context.SecurityContextHolder;
  import org.acegisecurity.providers.UsernamePasswordAuthenticationToken;
  import org.acegisecurity.ui.WebAuthenticationDetails;
  import org.acegisecurity.ui.webapp.AuthenticationProcessingFilter;
  import org.apache.log4j.Logger;
  
  
  /**
   * Title:            AcegiController.java<br>
   * Java Version:     JDK 1.5<br>
   *
   * @author Philipp Gantert
   * @version 1.0
   */
  public class AcegiController {
  	private Logger logger = Logger.getLogger(getClass());
  
  	private String username;
  
  	private String password;
  
  	private String domaine;
  
  	private String group;
  
  	private Collection<SelectItem> choose;
  
  	private Service service;
  
  	private AuthenticationManager authenticationManager;
  
  	public void setService(Service service) {
  		this.service = service;
  		logger.debug("Service initialisiert");
  	}
  
  	public void setAuthenticationManager(AuthenticationManager authenticationManager) {
  		this.authenticationManager = authenticationManager;
  		logger.debug("authenticationManager initialisiert");
  	}
  
  	public AuthenticationManager getAuthenticationManager() {
  		return authenticationManager;
  	}
  
  	public AcegiController() {
  		logger.setAdditivity(false);
  	}
  
  	public String getPassword() {
  		return password;
  	}
  
  	public void setPassword(String password) {
  		this.password = password;
  	}
  
  	public String getUsername() {
  		return username;
  	}
  
  	public void setUsername(String username) {
  		this.username = username;
  	}
  
  	public String getDomaine() {
  		return domaine;
  	}
  
  	public void setDomaine(String domaine) {
  		this.domaine = domaine;
  	}
  
  	public String getGroup() {
  		return group;
  	}
 
 	public void setGroup(String group) {
 		this.group = group;
 	}
 
 	public Collection<SelectItem> getChoose() {
 		logger.debug("Auswahlliste holen");
 		choose = new ArrayList<SelectItem>();
 		choose.add(new SelectItem("hft-so.bbz-sg.lan"));
 		choose.add(new SelectItem("bbz-sg.lan"));
 		return choose;
 	}
 
 	public void setChoose(Collection<SelectItem> choose) {
 		this.choose = choose;
 	}
 
 
 
 
 	// ------------------ Action Listener Methoden ---------------------
 	public void logout(ActionEvent ereignis) {
 		HttpSession session = (HttpSession) FacesContext.getCurrentInstance().getExternalContext()
 				.getSession(false);
 		logger.debug("Id der UIComponent: " + ereignis.getComponent().getId());
 		session.invalidate();
 	}
 
 	// ------------------ Action Methoden ---------------------
 	public String authenticate() throws Exception {
 		logger.setAdditivity(false);
 		String outcome = "failure";
 
 		HttpServletRequest request = (HttpServletRequest) getFacesContext().getExternalContext().getRequest();
 
 		HttpSession session = (HttpSession) request.getSession();
 
 		String name=getUsername()+"@"+getDomaine().toUpperCase();
 
 		try {
 			String userName = name;
 			String password = getPassword();
 			logger.debug(userName + "  " + password);
 			UsernamePasswordAuthenticationToken authReq = new UsernamePasswordAuthenticationToken(userName,
 					password);
 
 			authReq.setDetails(new WebAuthenticationDetails(request));
 
 			session.setAttribute(AuthenticationProcessingFilter.ACEGI_SECURITY_LAST_USERNAME_KEY, userName);
 			logger.debug("Attribut gesetzt!!!");
 
 			Authentication auth = getAuthenticationManager().authenticate(authReq);
 			logger.debug(HttpSessionContextIntegrationFilter.ACEGI_SECURITY_CONTEXT_KEY);
 			SecurityContext secCtx = SecurityContextHolder.getContext();
 			logger.debug(secCtx.toString());
 			secCtx.setAuthentication(auth);
 
 			HeraclesUserDetails userDetails= (HeraclesUserDetails)auth.getPrincipal();
 			LdapUser ldapUser=userDetails.getLdapUser();
 			logger.debug("LdapUser is null? "+ldapUser==null);
 
 			logger.debug("placing SecurityContext from holder into session");
 			session.setAttribute(HttpSessionContextIntegrationFilter.ACEGI_SECURITY_CONTEXT_KEY, secCtx);
 
 			StringBuffer sb = new StringBuffer();
 
 			Iterator iter = ldapUser.getLdapGroups().iterator();
 			outcome = "error";
 			while (iter.hasNext()) {
 				LdapGroup ldapGroup = (LdapGroup) iter.next();
 				sb.append(ldapGroup.getName());
 				sb.append("; ");
 				if (ldapGroup.getName().equals("heracles_admin")) {
 					logger.debug("HERACLES_ADMIN set to group attribute");
 					session.setAttribute("ldapUser", ldapUser);
 					session.setAttribute("heracles_admin", true);
 					session.setAttribute("logoff", true);
 					outcome = "success";
 				}
 				if (ldapGroup.getName().equals("heracles_mitarbeiter")) {
 					logger.debug("HERACLES_MITARBEITER set to group attribute");
 					session.setAttribute("ldapUser", ldapUser);
 					session.setAttribute("logoff", true);
 					outcome = "success";
 				}
 			}
 			session.setAttribute("groups",sb.toString());
 
 		} catch (AuthenticationException e) {
 			logger.debug(e.toString());
 			getFacesContext().addMessage(null, new FacesMessage(e.getMessage()));
 		}
 		return outcome;
 	}
 
 	private FacesContext getFacesContext() {
 		return FacesContext.getCurrentInstance();
 	}
 }